高精度数字温度计替代标准水银温度计的探讨  

Discussion on Replacing Standard Mercury Thermometer with High Precision Digital Thermometer

作　　者：王在旗 陈炯宇 纪金龙 刘君健 WANG Zai-qi;CHEN Jiong-yu;JI Jin-long;LIU Jun-jian(Xiamen Institute of Measurement and Testing,Xiamen 361004,China)

机构地区：[1]厦门市计量检定测试院,厦门361004

出　　处：《宇航计测技术》2022年第3期44-48,共5页Journal of Astronautic Metrology and Measurement

摘　　要：用基于工业铂电阻的高精度数字温度计替代标准水银温度计,是当今温度计量的一个研究热点。迄今为止这类产品只能作为工作器具使用,其主要原因是对高精度数字温度计的长期稳定性研究还不充分。介绍了一款高精度数字温度计长达8年的稳定性研究成果,并和标准水银温度计比较,说明用高精度数字温度计替代标准水银温度计是完全可行的观点,同时提出一些具体建议。Replacing standard mercury thermometers with high⁃precision digital thermometers based on industrial platinum resistors is a research hotspot in the field of thermometry.However,so far,such products can only be used as working instruments,the main reason is that the long⁃term stability of high⁃precision digital thermometers has not been studied sufficiently.The results of an eight year study on the stability of a high precision digital thermometer is introduced,and compares it with the standard mercury thermometer,shows that it is completely feasible to replace the standard mercury thermometer with a high⁃precision digital thermometer,and puts forward some specific suggestions.

关 键 词：数字温度计 高精度 稳定性 标准水银温度计 温度标准 

分 类 号：TB942[一般工业技术—计量学]